多轮审查和修复

Assets/Scripts/Core/SceneService.cs

@@ -19,7 +19,7 @@ namespace BaseGames.Core
     }
 
     /// <summary>
-    /// 场景管理服务（Phase 0 骨架，Phase 1 完整实现）。
+    /// 场景管理服务。
     /// </summary>
     [DefaultExecutionOrder(-900)]
     public class SceneService : MonoBehaviour, ISceneService
@@ -35,18 +35,14 @@ namespace BaseGames.Core
         [SerializeField] private float _fadeDuration = 0.3f;
 
         private string _currentRoomScene;
+        private readonly CompositeDisposable _subscriptions = new();
 
         private void OnEnable()
         {
-            if (_onSceneLoadRequest != null)
-                _onSceneLoadRequest.OnEventRaised += HandleSceneLoadRequest;
+            _onSceneLoadRequest?.Subscribe(HandleSceneLoadRequest).AddTo(_subscriptions);
         }
 
-        private void OnDisable()
-        {
-            if (_onSceneLoadRequest != null)
-                _onSceneLoadRequest.OnEventRaised -= HandleSceneLoadRequest;
-        }
+        private void OnDisable() => _subscriptions.Clear();
 
         private void HandleSceneLoadRequest(SceneLoadRequest request)
             => StartCoroutine(LoadSceneCoroutine(request));